9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
****    * **    *  ** ***  *  * first_number;
 ***  * *** *****  *     ***   second_number;
 **    ** * **         ***  *  ** * swap;

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**    *     *      * *  *** ** *** 0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

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 *  **  (){
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**  * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
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int   * ** 
{
** ***     *  * ** a,b,swap;
   **  * ***   *  *      *
** *** ** ** ***  * * ** 
swap=a;
a=b;
b=swap;
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  *  ** **    *** **    
  * ** **   *     ** 0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
****** *  *** ** 
main()
{
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* **  *  * **   *  *  * * *****  
**  ****** * ** *   ** *  
swap=a;
a=b;
b=swap;
* * **     ****      *** a);
 ***  * ***   *****
  **   ***  ***  ** 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
* * * **  *** **  
 int main(){
int a,b;

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 *** ** * **   * ***   * *** * * * *  ** *  *

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
    ** *** *  **  * 
  * *  **  main(){
int a,b;

**** * * *   * * * * * * *  *   ** *  * *  ****** **  ***   * ***

** ** **  *  *     ** *     *  * *** ***** ***   * 

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
*   ** *    * * *****   ***  
  * * * ***   * * * ******* x,y,temp;
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** *  *** * *  **  **  ***  = y;
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   *  * * ** *  * **** *  ****   * *    ** * * ****  x,y);
****  * * **  *** ** *  *
**  ** ** * * * ***** ******   * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output